Application Tier

DNS Amplification Attack

In a DNS amplification attack, an attacker sends thousands of DNS requests using a spoofed source IP address, making the requests appear to legitimately come from the targeted victim's system. As a result, the DNS server sends all DNS responses to the victim's server. Because DNS responses are much larger than DNS requests, the amount of return traffic is significantly amplified, overwhelming the targeted victim's server. In this sense, an amplification attack is a form of DDoS attack.

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